INT 62 u - FGDRIVER v4.02 - "FG_SETVPAGE" - SET VISIBLE VIDEO PAGE
	AX = 00B6h
	BX = new video page (0000h to 003Fh)
Notes:	the FGDRIVER functions are rearranged with each major release, but
	  their parameters do not change (see #03474 at AX=0000h)
	The specified page must be a physical or virtual page
SeeAlso: AX=0043h,AX=00AEh,AX=00B2h